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ASRock Z270 Extreme4 Motherboard Review (Page 4)

By Steven Bassiri from Jan 12, 2017 @ 8:40 CST
TweakTown Rating: 91%Manufacturer: ASRock

Z270 Extreme4 Circuit Analysis Continued

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The new audio section uses the new Realtek ALC1220 which offers 120dB SNR and an integrated amplifier for the headphone output. ASRock supplements the audio system with another amplifier for the front panel audio header with a Texas Instruments NE5532 amplifier. Nichicon Gold series electrolytic audio capacitors and PCB division help improve audio performance.

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ASRock is sticking with Intel NICs this round; an i219v PHY is used to compliment the integrated MAC in the PCH. ASRock is also using ASMedia's latest USB 3.1 controller, the ASM2142, which offers an x2 PCI-E 3.0 uplink to the PCH for more bandwidth for USB 3.1 ports. There is also an ASMedia ASM1543 USB 3.1 type-C switch and CC logic controller on the back of the motherboard's PCB.

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An ASMedia ASM1442K level shifter is used to convert the digital video output from the iGPU into signals that the HDMI and DVI connectors can use. A Realtek RTD2168 provides VGA/D-SUB analog video output, as Intel removed native analog video output from the CPU. I am not completely sure, but the nuvoTon N76E88 near the RGB LED header should be responsible for RGB LED functionality.

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An ASMedia ASM1061 is responsible for providing two SATA6Gb/s ports. The ASMedia ASM1074 is a USB 3.0 hub, which takes a single USB 3.0 port from the PCH and outputs four ports for the two internal USB 3.0 headers.

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A nuvoTon NCT6791D is the main SuperIO. The motherboard also has two 128Mbit ROMs for redundancy, and a Texas Instruments GD75232 driver and receiver chip for the COM header.

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